I've found http://highscalability.com/ http://highscalability.com/ & https://stackshare.io/featured-posts https://stackshare.io/featured-posts to be really usef

I've found http://highscalability.com/ http://highscalability.com/ & https://stackshare.io/featured-posts https://stackshare.io/featured-posts to be really useful. I constantly refer to these at work for design inspiration.